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From: "Cristian Rodríguez" <crrodriguez@opensuse.org>
To: libc-alpha@sourceware.org
Subject: [PATCH] debug: Improve fdelt_chk error message
Date: Sun, 13 Mar 2022 18:40:24 +0000	[thread overview]
Message-ID: <20220313184024.10130-1-crrodriguez@opensuse.org> (raw)

It is not a "buffer overflow detected" but an out of range
bit on fd_set

Signed-off-by: Cristian Rodríguez <crrodriguez@opensuse.org>
---
 debug/fdelt_chk.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/debug/fdelt_chk.c b/debug/fdelt_chk.c
index c5f16462ad..30f5a4bec1 100644
--- a/debug/fdelt_chk.c
+++ b/debug/fdelt_chk.c
@@ -15,6 +15,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
+#include <stdio.h>
 #include <sys/select.h>
 
 
@@ -22,7 +23,7 @@ long int
 __fdelt_chk (long int d)
 {
   if (d < 0 || d >= FD_SETSIZE)
-    __chk_fail ();
+    __fortify_fail ("bit out of range 0 - FD_SETSIZE on fd_set");
 
   return d / __NFDBITS;
 }
-- 
2.35.1


             reply	other threads:[~2022-03-13 18:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-13 18:40 Cristian Rodríguez [this message]
2022-03-14  8:23 ` Siddhesh Poyarekar
2022-03-28 13:49   ` Siddhesh Poyarekar

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